基于谱聚类的畜牧业气象灾害分布特征提取模型
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A Model for Extracting Distribution Characteristics of Meteorological Disasters in Animal Husbandry Based on Spectral Clustering
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    摘要:

    为了解气象灾害分布特征,实现有效且准确的气象灾害预警,降低气象灾害给畜牧业造成的损失,提出一种基于谱聚类的畜牧业气象灾害分布特征提取模型。通过计算影响程度,确定11个气象灾害指标。对气象灾害指标实施标准化、空位补充以及去噪等处理。利用谱聚类算法计算气象灾害特征值,得出对应的气象灾害风险程度。区域1、2、5、7的灾害特征值呈现上升趋势,风险程度逐年上升;区域6、10的灾害特征值呈现下降趋势,风险程度逐年下降;区域3、4、8、9的灾害特征值一直维持在较为稳定的水平上,其中3、4、8区域的风险程度一直保持在低度风险水平,9区域的风险程度一直保持在中度风险水平。低度风险区域所占面积更大且多集中在西北角,中度风险区域且多集中在中部,高度风险区域且多集中在东南地区。结果表明:所构建模型具有较好的应用效果,能够有效实现畜牧业气象灾害分布特征提取。

    Abstract:

    In order to understand the distribution characteristics of meteorological disasters, realize the effective and accurate early warning of meteorological disasters, and reduce the losses caused by meteorological disasters to animal husbandry, a model for extracting the distribution characteristics of meteorological disasters in animal husbandry based on spectral clustering was proposed. By calculating the degree of impact, 11 meteorological disaster indicators are determined. Standardization, vacancy supplement and noise removal are carried out for meteorological disaster indicators. Spectral clustering algorithm is used to calculate the characteristic value of meteorological disasters, and the corresponding risk degree of meteorological disasters is obtained. The regions 1, 2, 5 and 7 show an upward trend, and the risk degree increases year by year, while the disaster characteristic values of regions 6 and 10 show a downward trend, and the risk degree decreases year by year; The disaster characteristic values of regions 3, 4, 8 and 9 have been maintained at a relatively stable level, of which the risk level of regions 3, 4 and 8 has been maintained at a low risk level, and the risk level of region 9 has been maintained at a moderate risk level. The low risk area occupies a larger area and is mostly concentrated in the northwest corner, the moderate risk area is mostly concentrated in the middle, and the high risk area is mostly concentrated in the southeast. The results show that the model has a good application effect and can effectively extract the distribution characteristics of meteorological disasters in animal husbandry.

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闫 慧.基于谱聚类的畜牧业气象灾害分布特征提取模型[J].,2025,44(10).

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  • 收稿日期:2024-10-26
  • 最后修改日期:2024-11-22
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  • 在线发布日期: 2025-12-02
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